Establishment of a new pull-out strength testing method to quantify early osseointegration-An experimental pilot...

Area of Science:

• Biomaterials Science
• Dental Implantology
• Surgical Research

Background:

• Assessing osseointegration is crucial for dental implant success.
• Distinguishing surface characteristics' impact from macro-design is challenging.
• A reliable experimental model is needed to isolate surface effects.

Purpose of the Study:

• To evaluate a novel animal model for measuring osseointegration.
• To assess the influence of surface characteristics independent of implant macro-design.
• To quantify the effect of different implant surfaces on osseointegration levels.

Main Methods:

• Seventy-two test bodies with FRIADENT® plus and P15/HAp surfaces were implanted in artificial calvarial defects in pigs.
• A gap was maintained between test bodies and bone to isolate surface effects.
• Pull-out strength was measured after 21 days to assess osseointegration.

Main Results:

• The P15/HAp group showed a mean pull-out strength of 412 ± 142 N.
• The FRIADENT® plus group showed a mean pull-out strength of 183 ± 105 N.
• The difference in pull-out strength was statistically significant (p < 0.0001).

Conclusions:

• The experimental model effectively measures the impact of implant surfaces on early osseointegration.
• The P15/HAp biofunctionalized surface demonstrated superior osseointegration compared to FRIADENT® plus.
• This model provides a foundation for future research on surface-enhanced osseointegration.